zschech



(No Model.)

' G. H. ZSGHEGH.

BAND SAW WHEEL.

No. 359,989. lPatented Mar. 22, 1887.

Ulli-if Q 19 Q@ E l) A CLMJJ J7' .2 L Y 11 F D Z9' man um lullin-men mbz'esses. Inventar UNITED STATES Partnr arten.

GUSTAVUS H. ZSCHECH, OF INDIANAPOLIS, INDIANA, ASSIGNOR TO ROSA MILLER, OF SAME PLACE.

BAND-SAW WHEEL.

SPECIFICATION forming part of Letters Patent No. 359,989, dated March 22. 1857.

Application Bled August 12, 1896. Serial No. 210,718. (No model.)

To @ZZ whom it may concern.-

Beit known that I, GUsTnvUs H. Zsonnon,

a citizen of the United States, :residing at Indianapolis, in the county of Marion and State of Indiana, have invented certain new and useful Improvements in Band-Saw .Vheels; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to io which it appertains to make and use the same,

reference being had to the accompanying drawings, and to the letters and figures of reference marked thereon, which form a part of this specification.

This invention relates to that class of devices known as band-saw wheels,77 the object thereof being. to provide a band saw wheel that shall be a non-conductor of electricity, whose rim surface shall have a powerfnl adhesive property, and that shall be able to resist any changeable tendency resulting from variations in the density and temperature of the atmosphere, and the invention consists in the construction, combination, and arrangement of the various parts, substantially as will be hereinalter described and claimed.

In the annexed drawings, illustrating my invention, Figure l is an elevation of my improved bandsaw wheel. Fig. 2 is a horizon- 3@ tal transverse section ofthe wheel and its shaft. Fig. 3 is a section, on an enlarged scale, of a portion of the rim ol the wheel near one ofthe spokes or arms. Fig. i is an enlarged sec tional detail of one ot' the arms and the portion ofthe rim to which it is secured, and Fig.

5 is an enlarged crosssection ofthe rim.

Like letters of reference desi gnate like parts in all the iignres.

A represents the rim of the wheel, .B the 4o hub, and D D the spokes or arms. The rim A is composed of layers of paper, pasteboard, straw-board, tar-board, die., cemented together, and further securely united by means of the wire nails a (o. The rim is made T- shaped in cross-section, as shown in Fig. 5, the stein of the T forming an internal rib or ilange around the inner surface of the rim. This rib is notched or cnt at proper intervals to receive the hiocks E E, which are bored,

5o each in a line corresponding with one of the radii ofthe Wheel, said blocks being for the purpose of holding the outside ends ot' the arms D D. The radial holes in these blocks are internally screw-threaded to correspond with the screw-threaded ends of the arms. While this method of connecting the arms and blocks may be preferable, others can be employed. When the blocks are placed in the notches provided for them in the rim, they are secured to the angle-iron rings G O by means 6o of rivets c c, or otherwise. The angle-iron rings are preferably made fast to the rim A by rivets b b.

rIhe hub B is provided with sockets F F, for holding the inner ends ofthe arms D D. Said arms are tted snugly in the sockets and held by pins d. d. These sockets are provided with air-vents e e, which allow the escape of the air and insure that the arms shall be driven firmly into their proper places. The eye of the hub 7o B is bored taperingly, and the shaft G is likewise formed with a taper, so that it may lit tightly within the eye, when it is held immovably by means of a nut, It, engaging a screwthreaded portion of the shaft next the hub, and on the end having the smaller diameter. The

journals ff on said shaft G are made tapering in directions the reverse of each other, and are provided with V-shaped collars g g, which prevent any lateral motion of the wheel in its 8o bearings.

It will thus beobscrved that by my improved band-saw wheel, wherein the rim is composed of paper layers, the effects of electricityin irnpairing the quality of the steel of which the S5 saw is made are obviatcd, paper being a noncondnctor. As shown in the drawings, these paper layers are so situated that their outer edges together constitute the outer su rface of the rim. Vhile this is the preferable arrange 9o ment, others may obviously be devised.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. A band-saw wheel consisting of a rim formed ot' layers of paper or the like, the radially-bored blocks, the angleiron rings, the arms, and the hub, substantial] y as shown and described.

2. In a bandsaw wheel, the combination of roo Q Y i 359,989

the rim formed of layers of paper or the like and having an inner flange, the bored blocks inserted in notches in said ange,rthe angleiron rings, the hubs having sockets, and the arms Whose ends are secured, respectively, Within the rim-blocks and the hub-sockets, substantially as described.

3. i The combination ofthe rim A, formed of layers of `paper united together, the blocks El E, bored to receive the arms, the angle-iron rings C, the arms D D, the hub B, having sockets F Rand vent-holes e, all arranged; substantially as shown and described. l

4; In a band-saw wheel, the combination of GUSTAVUS H. ZSCHEGH.

signature in Vitnesses:

J. G.`LIGHTF0RD, WVILL F. A. BERiYHAMER.f 

